34640921856 has 36 divisors (see below), whose sum is σ = 92195372192. Its totient is φ = 11546973696.

The previous prime is 34640921669. The next prime is 34640921873. The reversal of 34640921856 is 65812904643.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22551916 + ... + 22553451.

Almost surely, 2^34640921856 is an apocalyptic number.

It is an amenable number.

34640921856 is an abundant number, since it is smaller than the sum of its proper divisors (57554450336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34640921856 is an equidigital number, since it uses as much as digits as its factorization.

34640921856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45105386 (or 45105372 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 34640921856 in words is "thirty-four billion, six hundred forty million, nine hundred twenty-one thousand, eight hundred fifty-six".